@article{ausefulnessbasedapproachformeasuringthe,
  title = {A Usefulness-based Approach for Measuring the Local and Global Effect of IIR Services},
  author = {Hienert Daniel and Mutschke Peter},
  year = {2018},
  eprint = {1808.06818},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1808.06818v1},
}